khodowany
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import copy
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import fractions
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import pathlib
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import unittest
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import unittest.mock
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import generator.acoustic
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import generator.arrange.generate
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import generator.engraving.fonts
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import generator.engraving.layout
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import generator.engraving.types
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import generator.model
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import generator.playback
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import generator.practice.generate
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import tests.rhythm_fixtures
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import tests.test_accompaniment
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import tests.test_musicxml
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import tests.test_parts
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def sounding(document):
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return sorted(tuple(generator.model.fraction(event[key]) for key in ('onset', 'duration', 'pitch')) for event in generator.playback.compile_timeline(document)['events'])
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def acoustic_document(bars):
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document = tests.test_musicxml.parse(tests.test_accompaniment.xml_bars([tests.test_musicxml.xml_note()] * len(bars)))
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staff = document['staves'][0]
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staff.update(arrangement_part_type='acoustic', tablature=True)
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for measure, (bass, upper) in zip(staff['measures'], bars):
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measure['transpose']['octave_change'] = -1
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measure['voices'] = []
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for lane, attacks, positions in (('bass', bass, (('c', 5, 3),)), ('upper', upper, (('e', 4, 2), ('g', 3, 0)))):
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notes, cursor = [], fractions.Fraction()
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for onset, duration in attacks:
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onset, duration = fractions.Fraction(onset), fractions.Fraction(duration)
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if onset > cursor:
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notes.append(generator.model.make_event(f'{measure["id"]}-{lane}-{len(notes)}', cursor, onset - cursor, 'rest'))
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pitches = [{'letter': letter, 'alter': generator.model.rational(0), 'octave': 4, 'tablature': {'string': string, 'fret': fret}} for letter, string, fret in positions]
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notes.append(generator.model.make_event(f'{measure["id"]}-{lane}-{len(notes)}', onset, duration, 'note', pitches))
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cursor = onset + duration
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if cursor < 4:
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notes.append(generator.model.make_event(f'{measure["id"]}-{lane}-{len(notes)}', cursor, 4 - cursor, 'rest'))
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for note in notes:
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note.update(voice=lane, stem='down' if lane == 'bass' else 'up')
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measure['voices'].append({'id': lane, 'notes': notes})
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generator.model.validate_document(document)
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return document
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class AcousticTests(unittest.TestCase):
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def combine(self, document):
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before = sounding(document)
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generator.acoustic.combine(document)
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generator.model.validate_document(document)
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self.assertEqual(sounding(document), before)
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self.assertTrue(all(len(m['voices']) == 1 for m in document['staves'][0]['measures']))
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for measure in document['staves'][0]['measures']:
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for note in measure['voices'][0]['notes']:
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self.assertNotIn('stem', note)
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self.assertNotIn('beams', note)
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for pitch in note['pitches']:
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self.assertNotIn('stem', pitch)
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once = copy.deepcopy(document)
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generator.acoustic.combine(document)
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self.assertEqual(document, once)
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return [m['voices'][0]['notes'] for m in document['staves'][0]['measures']]
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def test_simultaneous_attacks_share_one_chord(self):
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notes = self.combine(acoustic_document([([(0, 2), (3, 1)], [(0, 2), (3, 1)])]))[0]
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self.assertEqual(tests.test_accompaniment.timing(notes), [(0, 2, 'note'), (2, 1, 'rest'), (3, 1, 'note')])
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self.assertEqual([len(n['pitches']) for n in notes], [3, 0, 3])
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def test_sustained_bass_ties_through_upper_attacks_and_releases(self):
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notes = self.combine(acoustic_document([([(0, 4)], [(1, 1), (3, 1)])]))[0]
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self.assertTrue(all(n['kind'] == 'note' for n in notes))
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self.assertEqual([len(n['pitches']) for n in notes], [1, 3, 1, 3])
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for first, second in zip(notes, notes[1:]):
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self.assertEqual(first['pitches'][0]['tie_to'], second['pitches'][0]['id'])
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self.assertEqual(first['pitches'][0]['tablature'], second['pitches'][0]['tablature'])
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def test_repeated_pitch_is_an_attack_not_a_tie(self):
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notes = self.combine(acoustic_document([([(0, 2), (2, 2)], [(0, 4)])]))[0]
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self.assertEqual(len(notes), 2)
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self.assertNotIn('tie_to', notes[0]['pitches'][0])
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self.assertNotIn('tie_from', notes[1]['pitches'][0])
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for first, second in zip(notes[0]['pitches'][1:], notes[1]['pitches'][1:]):
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self.assertEqual(first['tie_to'], second['id'])
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def test_existing_tie_boundary_does_not_add_a_redundant_event(self):
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document = acoustic_document([([(0, 1), (1, 1)], [(2, 2)])])
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first, second = document['staves'][0]['measures'][0]['voices'][0]['notes'][:2]
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first['pitches'][0]['tie_to'] = second['pitches'][0]['id']
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second['pitches'][0]['tie_from'] = first['pitches'][0]['id']
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notes = self.combine(document)[0]
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self.assertEqual(tests.test_accompaniment.timing(notes), [(0, 2, 'note'), (2, 2, 'note')])
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def test_cross_measure_ties_preserve_both_rhythms(self):
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document = acoustic_document([([(0, 4)], [(2, 2)]), ([(0, 2)], [(0, 1), (2, 1)])])
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first, second = document['staves'][0]['measures']
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for lane in range(2):
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old = next(n for n in first['voices'][lane]['notes'] if n['pitches'])
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new = second['voices'][lane]['notes'][0]
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for a, b in zip(old['pitches'], new['pitches']):
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a['tie_to'], b['tie_from'] = b['id'], a['id']
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notes = self.combine(document)
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self.assertTrue(all('tie_from' in p for p in notes[1][0]['pitches']))
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self.assertEqual(notes[1][-1]['kind'], 'rest')
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def test_silence_collapses_to_a_single_measure_rest(self):
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notes = self.combine(acoustic_document([([], [])]))[0]
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self.assertEqual(tests.test_accompaniment.timing(notes), [(0, 4, 'rest')])
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self.assertTrue(notes[0]['measure_rest'])
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def test_pickup_keeps_its_actual_duration(self):
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document = acoustic_document([([(0, 1)], [(0, 1)])])
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measure = document['staves'][0]['measures'][0]
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measure.update(duration=generator.model.rational(1), implicit=True)
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for voice in measure['voices']:
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voice['notes'] = voice['notes'][:1]
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notes = self.combine(document)[0]
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self.assertEqual(tests.test_accompaniment.timing(notes), [(0, 1, 'note')])
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def test_five_eighths_uses_conventional_tied_notes_not_a_tuplet(self):
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notes = self.combine(acoustic_document([([(0, fractions.Fraction(5, 2))], [])]))[0]
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self.assertEqual([n['written'] for n in notes], [{'type': 'half', 'dots': 0}, {'type': 'eighth', 'dots': 0}, {'type': 'quarter', 'dots': 1}])
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self.assertEqual(notes[0]['pitches'][0]['tie_to'], notes[1]['pitches'][0]['id'])
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def test_unrelated_voices_and_solo_slashes_are_unchanged(self):
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document = acoustic_document([([(0, 4)], [(0, 4)])])
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for part in ('electric', 'vocal', None):
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document['staves'][0]['arrangement_part_type'] = part
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before = copy.deepcopy(document)
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generator.acoustic.combine(document)
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self.assertEqual(document, before)
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document['staves'][0]['arrangement_part_type'] = 'acoustic'
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measure = document['staves'][0]['measures'][0]
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measure['voices'] = [{'id': 'voice-arranged', 'notes': [generator.model.make_event('slash', fractions.Fraction(), fractions.Fraction(4), 'note') | {'voice': 'voice-arranged', 'notehead': 'slash'}]}]
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before = copy.deepcopy(document)
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generator.acoustic.combine(document)
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self.assertEqual(document, before)
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def test_song_and_practice_integration_preserve_playback(self):
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source = tests.test_musicxml.parse(tests.test_musicxml.xml_score(tests.test_parts.xml_harmony() + tests.test_musicxml.xml_note()))
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rhythms = tests.rhythm_fixtures.library()
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for builder in (generator.arrange.generate.arrange_document, generator.practice.generate.practice_document):
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with unittest.mock.patch('generator.acoustic.combine'):
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separate = builder(source, 'acoustic', rhythms=rhythms)
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combined = builder(source, 'acoustic', rhythms=rhythms)
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self.assertEqual(sounding(separate), sounding(combined))
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generator.model.validate_document(combined)
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self.assertTrue(all(len(m['voices']) == 1 for m in combined['staves'][0]['measures']))
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def test_engraved_chord_has_one_stem_and_no_competing_rests(self):
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document = acoustic_document([([(0, 4)], [(1, 1), (3, 1)])])
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self.combine(document)
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fonts = generator.engraving.fonts.Fonts(pathlib.Path('package/assets/fonts/petaluma'))
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layout = generator.engraving.layout.layout_score(document, generator.engraving.types.Style(), fonts)
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primitives = [p for page in layout.pages for p in page.primitives]
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self.assertFalse([p for p in primitives if p.role in ('rest', 'tab-rest')])
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for note in document['staves'][0]['measures'][0]['voices'][0]['notes']:
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self.assertEqual(len([p for p in primitives if p.role == 'stem' and note['id'] in p.sources]), 1)
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self.assertTrue([p for p in primitives if p.role == 'tie'])
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